title: Current concepts in instrumented knee-laxity testing.
abstract: BACKGROUND
  Instrumented knee laxity testing devices have been used in both the clinical and research setting to evaluate persons with injuries about the knee. The ability to accurately and reproducibly quantify knee motion has the potential to greatly benefit both clinical practice and research by improving the validity of the research involving treatment of knee-ligament injuries.
  
  
  METHODS
  Systematic review; Level of evidence, 4.
  
  
  METHODS
  A thorough literature review was performed, and a systematic overview is provided evaluating the methods of use and the evidence for the use of instrumented knee laxity testing devices.
  
  
  RESULTS
  Devices that provide measurements of knee laxity have evolved during the past 30 years. The authors describe in detail their proper use and the best estimates of their validity based on clinical studies.
  
  
  CONCLUSIONS
  The review suggests that the KT-1000 knee arthrometer and the Rolimeter provide best results when testing anterior laxity at the knee, whereas the Telos device is superior for the assessment of posterior laxity.
authors.affiliation: Department of Orthopaedic Surgery, University of British Columbia, Vancouver, British Columbia, Canada.
authors.forename: Luke
authors.initials: L
authors.lastname: Pugh
authors.forename: Randy
authors.initials: R
authors.lastname: Mascarenhas
authors.forename: Shalinder
authors.initials: S
authors.lastname: Arneja
authors.forename: Patrick Y K
authors.initials: PY
authors.lastname: Chin
authors.forename: Jordan M
authors.initials: JM
authors.lastname: Leith
mesh_terms: D000070598:Anterior Cruciate Ligament Injuries; D003955:Diagnostic Tests, Routine / Q000295:instrumentation*; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis*; D007719:Knee Joint / Q000503:physiopathology*; D013178:Sports Medicine